It was a dramatic scene. The Federal Chancellor, the First Mayor, the Senator for Economic Affairs, the assembled business leaders – they all stepped back into the second row and left the central seat to two children: seven-year-old Stella and eleven-year-old Iago. Between the two stood a black desk that reached up to Stella’s chin, and on it: the “Button”, a light blue, shimmering, transparent cylinder the size of a soup bowl. What would happen if Stella and Iago pressed the button?